Thermoluminescent characteristics of synthetic hydroxyapatite (SHAp)

R. Alvarez, T. Rivera, J. Guzman, M. C. Piña-Barba, J. Azorin

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10 Scopus citations

Abstract

This paper presents the experimental results of the thermoluminescent (TL) characteristics of synthetic hydroxyapatite (SHAp) obtained by the sol-gel method. For preparation of the SHAp powders, phosphorus pentoxide (P2O5) and calcium nitrate tetrahydrated (Ca(NO3)2-4H2O) were used. The powders obtained were submitted at different temperatures. The structural and morphological characterization were carried out using X-ray diffraction (XRD) and scanning electron microscopy techniques. TL glow curve exhibited two peaks centered at around 200°C and 300°C. TL response of SHAp as a function of gamma absorbed dose was linear over a wide dose range. Fading of the storage information in the samples irradiated was also studied. The experimental results show that the synthetic hydroxyapatite obtained by the sol-gel method may have used in gamma radiation dosimetry applications.

Original languageEnglish
Pages (from-to)192-195
Number of pages4
JournalApplied Radiation and Isotopes
Volume83
DOIs
StatePublished - Jan 2014

Keywords

  • Gamma irradiation
  • Sol-gel method
  • Synthetic hydroxyapatite
  • Thermoluminescence

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